Ground noise beep

SOURCE: Ion ttUSB turntable fault

The ION should be internally grounded, however, it's possible the Tonearm might be faulty as well. Try a different USB cable as well - make sure you have one rated for the type of USB card you have (1.1, 2,0, etc).

FYI, this isn't the most sophisticated unit on the market, and not very well made either, so you might just have a faulty unit. If it's relatively new, I suggest calling in for warranty info, or try and return/exchange it.

- TWEAK AV LAB

SOURCE: Numark turntable records record AND sounds in the room

the mic is in the computer somewhere, there will be a way to mute the microphone either in the vinyl software or in the system settings of the computer!

SOURCE: Where do I connect the ground wire from my amp to Numark TT USB?

i used to have stanton t80s,had the same problem no gnd on deck but diddnt need it there waqs no bad earth so if it sounds good leave it

SOURCE: im new with the use

A turntable use a magnetic cartridge and its output is only 5 to 10 millivolts.A moving coil cartridge is even lower,.2 to .5 millivolts(thats 1/2000 of a volt)in contrast, a mp3 puts out a 300 to 900 mv signal..so does a CD player. Your turntable does not have enough signal.You need to get an amplifier that has a phono input. Years ago,radio shack used to sell phono preamps that could plug into a tape or cd input.The other option is to buy a used mixer that has a phono input.The mixer output can drive the cd input easily,as the max output from a mixer is 1.5 volts to 2 volts.

SOURCE: how do i hook a numark tt 1625 turntable to a

Turntables require a special input in the amp (usually marked PHONO) because they require high gain and different equalization - and yes, that ground wire has to go to ground unless you want to get a super annoying 60Hz hum from it!
If your amp doesn't have a phono input, you're going to have to go out and get a phono pre-amp and connect it between the turntable and the amp.
Best of luck!